Cut chicken breasts into strips or bite-sized chunks.
Preheat the Blackstone griddle to medium heat.
Add olive oil and butter, then toss in the minced garlic. Cook until fragrant.
Place chicken on the griddle, season with salt and pepper, and cook until golden on each side.
Sprinkle parmesan cheese over the chicken and toss to coat as it melts.
Finish with chopped parsley before serving hot.